Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 2.0mm), mostly falling on Sun night. Very mild (max 13°C on Sun morning, min 1°C on Sun night). Winds decreasing (strong winds from the WSW on Sun night, calm by Mon night).
Osa Weather (Days 4-6): Heavy rain (total 29.0mm), heaviest during Tue night. Very mild (max 14°C on Thu afternoon, min 3°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue afternoon, calm by Thu afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 6 |  | ||||
| Bottom Lift: | 10 | |
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  | |  |  | | |  |  |  |  | | | | | |  | |
clear | clear | clear | clear | some clouds | rain shwrs | clear | some clouds | some clouds | cloudy | mod. rain | heavy rain | cloudy | cloudy | clear | clear | clear | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 2 | — | — | — | — | 6 | 23 | — | — | — | — | — | — | |
max °C | 10 | 11 | 5 | 13 | 13 | 11 | 7 | 8 | 4 | 10 | 8 | 7 | 6 | 7 | 4 | 13 | 14 | 8 |
min °C | 6 | 6 | 4 | 9 | 12 | 1 | 3 | 4 | 3 | 7 | 7 | 4 | 4 | 5 | 3 | 9 | 10 | 8 |
3 | 4 | 0 | 6 | 9 | -3 | -1 | 2 | 2 | 4 | 3 | 1 | 0 | 2 | 0 | 8 | 10 | 6 | |
52 | 45 | 53 | 77 | 77 | 69 | 43 | 20 | 19 | 42 | 91 | 99 | 89 | 82 | 78 | 71 | 68 | 82 | |
1750 | 2350 | 2800 | 2650 | 2900 | 3050 | 1550 | 2500 | 2850 | 2650 | 2600 | 2700 | 2650 | 3100 | 3250 | 3300 | 3300 | 3150 | |
 | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — |
 | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — |
Light rain (total 2.0mm), mostly falling on Sun night. Very mild (max 13°C on Sun morning, min 1°C on Sun night). Winds decreasing (strong winds from the WSW on Sun night, calm by Mon night).
Heavy rain (total 29.0mm), heaviest during Tue night. Very mild (max 14°C on Thu afternoon, min 3°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue afternoon, calm by Thu afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | Powder days Fresh snow, limited sun, any wind. |
0.3 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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